144 TETRODONTIU.K. 



base of pectoral fin, and ou caudal region ; lateral-line system repre- 

 sented by very distinct furrows. Upper parts dark olive-grey, lower 

 parts and dorsal, anal, and pectoral fins yellow ; caudal dark olive, with 

 a broad orange posterior border ; black stripes along bides of body and 

 caudal peduncle, converging towards their fellows on the back ; usually 

 three stripes below pectoral tin and three on each side of caudal 

 peduncle ; in some specimens the stripes are lost on the back, which is 

 of a uniform blackish olive, or with roundish lighter spots ; some 

 specimens Avith dark vertical bars on the sides of the head ; black 

 stripes not so well defined in the young, or replaced by roundisli spots. 



Total length 430 millini. 



Nile, Chad Basin, Senegambia, Niger. 



1-10. Ilgr. & yg. Fresli-wiitcr [kxjI at Glict-ol- L. Lout, Esq. (C). 



Nassara, L. ^leiizalrli. 

 11. Skel. Nile. 



12-15. All, liosetia Xile, dowustreani L. Loat, Esq. (( '.). 



side of barrage. 



1(1. Yg. Nile near Cairo. Capt. S. Flower (P.). 



17. Yg. Near Luxor. L. Loat, Esq. (C). 



in. Ad. Abu Siiiil)il, Niiiiia. „ 



19-20. A J. Khartum. J. Petlierick, Esq. (C). 



21. Yg. llosaires, Blue Nile. Capt. S. Flower (P.). 



22-24. Yg. Goz-abu-Guuia, White Nile. L. Loat, Esq. (C). 



25-39, 4U-il. Ad., Fashoda, 



hgr., & yg. 



42. Ad. Polkoin, Ikuo R., Sobat. Mr. P. ('. Zaphiro (C.) ; 



W. N. ilcMillan. E^q. 



0'.)- 

 4:5-45. Ad. Mouth of L. No. L. Lout, Esq. (C). 



4G-52. Ad. Gondokoro. „ 



53-57. ilgr. & yg. Fort Lomy, Shari U. Capt. G. P>. Gosling (P.). 



58. Yg. Yo 1{., L. Chad. 



59. Ad., stffd. Senegal. 



CO. Ho-r. Geba 1!., Portugiu-so Guinea. Dr. \V. J. Ansorge (C). 



Gl. Type of T. Niger, Zjulogical Society (P.). 



stri<josus. 



C2. Ad. „ Mr..l.T. I)alton(C.). 



63-G4. Ad. & hgr. Niger Delta. J)r. \V. II. Crosse (P.j. 



G5. Skol. W. Africa. 



